[LLVMbugs] [Bug 2126] New: something funny with the symbol table lookup

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=2126

           Summary: something funny with the symbol table lookup
           Product: new-bugs
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: nicholas at mxc.ca
                CC: llvmbugs at cs.uiuc.edu


Created an attachment (id=1501)
 --> (http://llvm.org/bugs/attachment.cgi?id=1501)
optimized linux simple_throw bytecode

For some reason, on Linux the JIT can resolve a symbol while the interpreter
can't. This is SingleSource/Regression/C++/EH/simple_throw:

$ lli --force-interpreter=true x.bc
Could not resolve external global address: _ZTIi
llvm-commit/Debug/bin/lli[0x87e0322]
llvm-commit/Debug/bin/lli[0x87e0454]
[0xffffe500]
Aborted
$ lli x.bc
terminate called after throwing an instance of 'int'
llvm-commit/Debug/bin/lli[0x87e0322]
llvm-commit/Debug/bin/lli[0x87e0454]
[0xffffe500]
Aborted

(Neither behaviour is entirely correct, but the JIT is closer. The program does
throw 5, but it ought to catch it too.)

I added debugging to the JIT and it is resolving _ZTIi.


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